KAE Device QoS Setting

KAE devices support the quality of service (QoS) function. You can set QoS to allocate different bandwidths for KAE devices in different containers. Setting a higher KAE QoS for high-priority containers can ensure that the KAE devices in the containers have higher bandwidth, thereby guaranteeing the service quality.

1. Add the annotation qos.kae.kunpeng.com/hisi_hpre: "500" to the YAML file of the Pod to declare the QoS of the KAE devices. For details about how to set the QoS of other devices, see Table 1.

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   apiVersion: v1 kind: Pod metadata: name: kae-test-qos annotations: qos.kae.kunpeng.com/hisi_hpre: "500" spec: containers: - name: kae-test-qos image: kae-test:latest command: ["/bin/sh", "-c", "while true; do echo hello; sleep 300000; done"] imagePullPolicy: IfNotPresent resources: requests: kae.kunpeng.com/hisi_hpre: "1" limits: kae.kunpeng.com/hisi_hpre: "1" volumeMounts: - name: local-lib mountPath: /usr/local volumes: - name: local-lib hostPath: path: /usr/local

   Table 1 KAE device QoS annotations

   KAE Device	Annotation Name
   HPRE	qos.kae.kunpeng.com/hisi_hpre
   SEC	qos.kae.kunpeng.com/hisi_sec2
   ZIP	qos.kae.kunpeng.com/hisi_zip

2. Deploy the Pod as instructed in KAE Device Passthrough.
3. Access the container and run the following command to check whether the QoS of the KAE devices is set successfully:

   kubectl exec -it kae-test-qos -- bash
   # Execute the following command in the container:
   env

   An example command output is as follows. The PCI addresses of the KAE devices that are passed through to the container are displayed.

   

   Based on the PCI addresses, run the following command on the physical machine to retrieve the file to check whether the QoS value is the same as that declared in the annotation:

   cat /sys/kernel/debug/hisi_hpre/0000:3a:00.0/alg_qos

   An example command output is as follows. The result is consistent with the value declared in the annotation qos.kae.kunpeng.com/hisi_hpre: "500", indicating that the QoS setting is successful.